helensburgh postcode nswbu Home ›› Postcode Finder ›› NSWBU ›› Helensburgh Helensburgh local listingsThe suburb of Helensburgh is located in NSW and has a postcode of 2508. Free helensburgh business listing! 1Brushed by Brooke LouiseHelensburgh New South Wales 2508, Australia 04344506552Gelato Man7B Walker Street, Helensburgh NSW, Australia 04048480663Waterboys Plumbing Services23 Princes Highway, Helensburgh NSW, Australia 0424 799 369 View more business listings in helensburgh Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.